R version 3.6.1 (2019-07-05)
Platform: x86_64-apple-darwin15.6.0 (64-bit)
Running under: macOS Mojave 10.14.6

Matrix products: default
BLAS:   /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libBLAS.dylib
LAPACK: /Library/Frameworks/R.framework/Versions/3.6/Resources/lib/libRlapack.dylib

locale:
[1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8

attached base packages:
[1] parallel  stats     graphics  grDevices utils     datasets  methods   base     

other attached packages:
[1] ggplot2_3.2.1     data.table_1.12.6 ergm.count_3.4.0  ergm_3.10.4      
[5] network_1.15      texreg_1.36.23    haven_2.2.0       stringr_1.4.0    

loaded via a namespace (and not attached):
 [1] Rcpp_1.0.3           pillar_1.4.2         compiler_3.6.1       DEoptimR_1.0-8      
 [5] forcats_0.4.0        tools_3.6.1          zeallot_0.1.0        packrat_0.5.0       
 [9] gtable_0.3.0         tibble_2.1.3         lattice_0.20-38      pkgconfig_2.0.3     
[13] rlang_0.4.1          Matrix_1.2-17        rstudioapi_0.10      coda_0.19-3         
[17] withr_2.1.2          dplyr_0.8.3          vctrs_0.2.0          hms_0.5.2           
[21] trust_0.1-7          grid_3.6.1           tidyselect_0.2.5     glue_1.3.1          
[25] robustbase_0.93-5    R6_2.4.1             purrr_0.3.3          magrittr_1.5        
[29] scales_1.0.0         backports_1.1.5      MASS_7.3-51.4        assertthat_0.2.1    
[33] colorspace_1.4-1     lpSolve_5.6.13.3     stringi_1.4.3        lazyeval_0.2.2      
[37] munsell_0.5.0        statnet.common_4.3.0 crayon_1.3.4        
